并对扩散条件进行了探讨。
分析了大气边界层扩散条件、大气污染源分布及预测、大气污染现状。
The paper analyses the diffusion conditions of air boundary layers, the distribution and forecast of source air pollution and the current situation of air pollution.
模拟结果还表明在较高尺度分子扩散条件下，其穿透曲线具有相类似的特征。
The results also demonstrate that the breakthrough curves have similar characters under the condition of higher scale of molecular diffusion.
我们使用激光共聚焦显微镜和扫描电子显微镜，研究了不同扩散条件对所得微胶囊结构的影响。
We then studied the effect of different diffusion conditions on the structure of microcapsules by laser confocal scanning microscope and scanning electron microscope.
获得安全饮用水、适当的卫生条件以及卫生服务是最基本的，可以防止疾病扩散到在道路上颠沛流离的人们、那些住在临时营地的人们以及生活在设立社区的人们。
Access to safe water, proper sanitation and health services is essential to prevent it from spreading to those displaced on roads, residing in temporary camps and living in established communities.
所有公式使用条件与高斯扩散模型相同，可用于直接求取任意浓度等值线精确的时、空位置及其特征点位置。
This modeling system has the same conditions as Gaussian diffusion model, and can calculate any concentration isoline's rigor time space location and specific points location.
通过将该半解析解与忽略扩散的数值解进行对比分析，讨论了数值弥散代替物理扩散的条件。
Then this paper studied the effect of diffusion coefficient on concentration distribution and the conditions of substitution with numerical dispersion for physical diffusion.
官员表示北方恶劣的天气条件也影响了污染物的扩散。
Officials say unfavourable weather conditions in the capital have prevented pollutants from dispersing.
在扩散声场假设条件下，采用系统学、统计学等方法来处理室内声场，避免了繁杂的数学推导。
Supposing that the condition of diffusive sound field is known, a method to handle room sound field is given to avoid the complicated mathematical derivation, using system theory and statistics.
应用交替分段显隐方法求解变系数对流扩散方程，此方法具有很好的并行性且无条件稳定。
Using alternating segment explicit implicit method for the variable coefficient convection diffusion equation. The method has the obvious property of parallelism and is unconditionally stable.
在水动力计算过程中考虑了洋流和季风等长周期动力因素，研究了温排水在这种长周期动力条件下的扩散规律。
In the process of hydrodynamic calculation, ocean current and monsoon have been added to the model, and the diffusion law of cooling water under the condition has been studied.
在扩散型电弧条件下对交流真空接触器触头侵蚀的特点进行剖析。
Under the condition of diffuse type of vacuum arcs the contact erosion rates in ac vacuum contactors are analysed.
本文第三章讨论的是如下非局部边界条件的反应扩散系统解的存在性和唯一性。
In the chapter there of this paper, we consider the uniqueness and the existence of solutions of the following reaction diffusion system with nonlocal boundary conditions.
利用打靶法、上下解方法和不动点定理等工具，研究有孔区域上一类具非局部边值条件的非线性扩散方程。
The shooting method, sub and super solution method, and fixed point theorem were used to study a class of nonlinear diffusion equations with nonlocal boundary value condition in perforated domains.
报告了我们在弹道扩散的产生条件、起源和长时间效应方面的工作。
Our works for the condition, origin and dynamical effects of ballistic diffusion are reported.
广义条件对称；精确解；非线性反应扩散方程；对称群。
The generalized conditional symmetry; Exact solutions; The nonlinear reaction diffusion equations; symmetry group.
采用斜向差分算子，建立斜向隐式差分格式，再结合边界条件，对扩散方程进行求解。
Based on the skew direction difference operator, the implicit skew difference schemes were constructed, and the boundary condition was unified, to solve the diffusion equation.
文中首先给出了由我们建立的床面泥沙交换理论导出的非均匀沙扩散方程的边界条件。
The boundary condition at bed surface of diffusion equation of nonuniform sediment is derived based on the concept of exchange intensity of stochastic theory by the author.
分析了条件扩散过程的鞅特性，得到了一些结果。
In the paper, we analyse martingle characteristics of conditional diffusion process and gain some results.
通过考虑波前扩散、地质条件的影响，设计了消除采集效应和传播效应的保幅算子。
We fully considered the influences of wave front diffusion, geological condition, designed the amplitude-preserved operator which can eliminate the effect of receivers and propagation.
认为实验条件下的吸附过程属于外扩散控制。
The adsorption process in the experimental conditions can be considered as external diffusion control.
根据不同的跃迁运动和自由扩散运动模型导出了魔角旋转条件下的平均谱密度函数。
The average spectral density functions under MAS condition were derived from various models of jump motion and models of freely diffusive motion.
利用金属蒸汽真空弧（MEVVA）源所产生的强束流离子注入铝研究了相变、增强扩散和钇铝合金的形成条件。
Phase transition, enhanced diffusion and Y-Al alloy formation are studied using Y implantation with high current extracted from metal vapor vacuum arc (MEVVA) ion source.
研究结果对正确选择轧制扩散工艺条件具有参考价值。
The results have the reference value for the correct selections of the rolling diffusion bonding parameters.
同时，我们详细研究了两类扩散方程的差分格式，讨论了处理各类边界条件的方法，以及处理非线性扩散的方法。
Moreover, we study numerical methods for two kinds of diffusion equations, and discuss how to deal with numerically different boundary conditions and the nonlinear diffusion.
本文通过对封闭型扩散模型的使用条件分析，提出了正确使用该模型的方法。
Through the analysis of use conditions for the closed dispersion model, the paper puts forward a method of using correctly the model.
在相当弱的条件下，当扩散系数非退化时，证明了方程强解的不合流性。
Under the general conditions on the coefficients, when the drift coefficients are non degenerate, the non confluent property are proved.
其次，我们给出了扩散引起正常数平衡解失稳的条件。
Then, for the positive constant equilibrium, we give a sufficient condition for diffusion-driven instability occurring.
其次，我们给出了扩散引起正常数平衡解失稳的条件。
Then, for the positive constant equilibrium, we give a sufficient condition for diffusion-driven instability occurring.
应用推荐